images hard_hat_workers4717.png 416 415 3 0 helmet Unspecified 0 0 0 60 141 83 173 helmet Unspecified 0 0 0 240 138 261 168 helmet Unspecified 0 0 0 174 147 196 176 helmet Unspecified 0 0 0 342 142 365 170 helmet Unspecified 0 0 0 157 156 171 175 helmet Unspecified 0 0 0 136 156 151 176 helmet Unspecified 0 0 0 224 155 238 179